Multiplex bag and the method of making it



Dec. 11, 1928. 1,694,455

w. L. TAYLOR! MULTIPLEX BAG AND THE METHOD OF MAKING IT Filed Oct. 26,1925 2 Sheets-Sheet l FOLD molar: LINER.

Fig. 2.

lliasm L. Ta y ler.

ATTORNEY.

Dec. 11, 1928. 1,694,455

W. L. TAYLOR MULTIPLEX BAG ANDTHE METHOD OF MAKING IT Filed 001.- 26,1925 2 Sheets-Sheet 2 F1 1 1; Fig. 5.. m g3 6 1 r Fig-6.

OUT$IDE PAPER,

INVENTOR.

William L. Tgler.

A TTORNEY.

Patented Dec. 11, 1928." I

WILLIAM L. TAYLOR, or omomnarr, OHIO.

HULTIPLEX BAG THE METHOD OF MAKING IT.

Application filed October 26, 1925. Serial No. 64,862.

The ob'ects of m invention are to provide a'multip ex ba 0 substantialconstruction in a simple an convenient manner and to effect a greatsaving in material and cost ofconstruction, as well as one in which theparts are secured together more uniformly and eflicientl than otherwise;to, construct a multiplex ag which can be produced on simple and lesscomplicated machinery than otherwise; to so form and construct themultiplex'bag as to apply the glue between the outer and inner plies atone 'stageof the operation and to apply the glue between the bag sideswhen fol ed transversely at a subsequent operation; andto provide aconstruction m which the inturned longitudinal fia s which have beenprevious?- glued togeer form multi-plyfiaps an' therefore, flaps ofstronger construction.

Another ob ect of the invention is that by I gluing the plies togetherbefore dieing out and cutting ofi' to the required length it permits themaking of a multiplex bag with inturned concealed glue flaps instead ofbeing folded over the outside and thereby effecting a neater and betterconstruction. 3

Still anotherobject of the invention is that I are enabled to glue therespective sides of the bag together along different longitudinal areaswhereby a minimum of glue is used and greater flexibility of the bag issecured so that the final step of folding the bag into closed positionis rendered easier and a neater and more finished closure of the bag maythereby be effected.

My invention consists in the novel method of constructing a multiplexbag comprising first gluing together superposed strips or plies of paperalternately along and near their longitudinal edges, then dieing outfrom said multi-ply sheet a series of bag blanks with one side of eachbag blank narrower than the other side, then folding the widerlongitudinal edges inwardly on a line with the longitudinal edges of thenarrower side to form securing flaps, then applying glue to the exposedsurface of each outer flap, then cutting off or nearly severing the bablank from the sheet, then folding the ad esively connected bag blankstransversely at the middle and securing the folded sides together alongthe longitudinal edgesthereof to form the completed bag. A

My invention also consists in the combination and arrangement of parts,the details 'versely at the center wit of construction and in the bag asan article of manufacture.

In the drawings, which serve to illustrate the preferred constructionand method of producing the bag:

Fig. 1 1s a View of two sheets or strips of paper of the same dimension,with the inner ply or liner folded back at one corner to show the outeror cover ply;

Fig. 2 is a view of the same after the Inc has been applied along thelon itudinal e ges between the plies of one bag side and folded back atthe other corner to show the lies of the other bag side secured togethery glue near their longitudinal edges;

Fig. 3 is a View of the same after the longitudinal edges of one portionhave been died or blanked out or out 05;

Fig. 4 is a transverse section on the line 44 of Fig. 3;

. Fig. 5 is a transverse section on the line 55 of Fig. 3;

6 is a plan view of the completed bag;

Fig. 7 is an isometric view, showing the plies pasted together-and artlyfolded transthe longitudinal flaps inturned and the outer flaps coatedwith paste on their exposed surfaces read to receive the op osing sidethereon to orm the completed ag;

Fig. 8 is a isometric view of the completed bag; and

9 is a section through the lining comprismg parafiin, paper,water-proofing material and paper, respectively, and through a coversheet of manila paper adhesively secured to the lining.

The embodiment of my invention, as illustrated, shows the referredconstruction. The multiplex bag is ormed of an outer covering 1 andinner lining 2, each consisting of a blank having its sides 3 and 4 ofequal area, as shown in Fig. 1, adapted to be folded on centraltransverse line 5 when forming the bag. The method of making the bag issubstantially as follows: i

A plurality of plies of paper are drawn in reg stry with each other fromrolls by any suitable means. Narrow layers of glue or paste 6 and 7 areapplied at and near the respective longitudinal edges of each adja centply of paper. The plies of paper are then pressed together upon saidlayers of paste, whereby they are permanently attached together inaccurate registry with cutting layer of glue-paste is then applied tothe exposed surface of each outer flap 9. The individual bag blank isthen cut off or nearly severed from the sheet. The sides 3 and 4 of thebag blank are then folded transversely on central line 5 and thelongitudinal edges of side 3 of the bag are then pressed down the sides,whereby upon the glue-pastelO, whereby the bag is completed, as shown inFigs. 5 and 8.

The inside ply 0r liner is permanently fastened to the outer ply by thismethod of construction to prevent shifting or withdrawal thereof, whichis a decided advantage, particularly on account of the easy and simplemanner in which it is mechanically accomplished. The plies being gluedtogether at the first step of the operation are held in absolute andaccurate registry with each other during the subsequent operations,thereby preventing any shifting of the plies relat ve to each other, asis'the case where the plies are glued together after the'dieing outoperation.

Two or more complete rolls of paper can be glued together one. separatemachine before making it up into bags ready for printing and this can bedone-on a very simple combining and re'winding machine. In other words,the plies of paper can be unwound from separate rolls and glued togetherat the necessary points and then rewound upon a single roll formanufacture into bags on simple bag making machinery, such as is usedfor making bags of single ply material. In doing this all that isrequired is to mark on or cut into the paper an identifying mark to showthe register point for the dielng-out knives on the bag makin machine.In this way, if desired, the gluing together of the sheets could be doneby one organization or factory and the dieing-out and completing of thebag could be done by another organization or factory so that if thesheets are glued together the material can be handled as if it were asingle sheet of paper instead of a plurality of sheets of paper. This isa decided advantage inthe construction of .the

bags since it enables the bag to be constructed more readily andeconomically by the use of simple, instead of complicated, machinery.

The inturne'd flaps of the inner and outer plies being glued togetherform a stronger and more substantial construction than otherwise.- M

An advantage of my invention in forming a multiplex bag is that thepaper may be simultaneously drawn from rolls and pasted together byintermittent strips of paste at the. edges of the sheet and awayfro'm'the edges thereof, respectively, to form the individual bagblanks, then carried on and died out to make one side of each bag blankotherwise between the longitudinal edges of the completed bag isformed,-as previously stated.

My construction of bag is particularly adapted for use in themanufacture of multiplex bags in which the lining is preferably formedof two plies of newsprint paper with intervening water-proof material,such as asphalt, and having its inner surface coated with a thin layerof paraffin. The outerply of the bag is preferably constructed of manilapaper or equivalent material upon which-printed matter may be placed.

While I have specified paper as the preferred material to be used, it isunderstood that in the specification and claim, I desire to have theterm paper defined as embracing any other suitable material which may beused in the construction of bags, such, for instance, as cloth, or othertextile material.

While I have set forth a particular construction and method it will beunderstood that this is merely by way of illustration and that theinvention is capable of modification without material departure from itsscope or spirit as defined in the claim, as, for in.- stance, side'8maybe undercut, as shown by dotted line X in Fig. 3 and side 4 may haveits end extended as shown by dotted line Y whereby one side of the openend of the bag is slightly longer than the other side for convenience inpacking operations.

What I claim as new and desire to by Letters Patent is:

The herein described method which consists in first gluing togethersuperposed plies of paper partly along their longitudinal edges andpartly away from their longitudinal edges to form blanks for a multiplexbag then dieing out the blank to form a bag of the required dimensionswith one side thereof narrower than the other side, then folding thelongitudinal edges of the wider side inwardly to form securing flaps,then coating the exposed surface of the outer flaps with adhesivesubstance, then folding the plies transversely whereby the two sidessecure are brought together and the longitudinal WILLIAM L. TAYLOR;

